CA1077245A - Process for preparing shaped articles from gypsum - Google Patents
Process for preparing shaped articles from gypsumInfo
- Publication number
- CA1077245A CA1077245A CA232,971A CA232971A CA1077245A CA 1077245 A CA1077245 A CA 1077245A CA 232971 A CA232971 A CA 232971A CA 1077245 A CA1077245 A CA 1077245A
- Authority
- CA
- Canada
- Prior art keywords
- weight
- gypsum
- calcium sulphate
- resp
- process according
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 229910052602 gypsum Inorganic materials 0.000 title claims abstract description 34
- 239000010440 gypsum Substances 0.000 title claims abstract description 34
- 238000004519 manufacturing process Methods 0.000 title description 2
- 239000000654 additive Substances 0.000 claims abstract description 26
- 238000000034 method Methods 0.000 claims abstract description 26
- 239000000126 substance Substances 0.000 claims abstract description 16
- PASHVRUKOFIRIK-UHFFFAOYSA-L calcium sulfate dihydrate Chemical compound O.O.[Ca+2].[O-]S([O-])(=O)=O PASHVRUKOFIRIK-UHFFFAOYSA-L 0.000 claims abstract description 11
- 230000000996 additive effect Effects 0.000 claims abstract description 10
- BFNBIHQBYMNNAN-UHFFFAOYSA-N ammonium sulfate Chemical compound N.N.OS(O)(=O)=O BFNBIHQBYMNNAN-UHFFFAOYSA-N 0.000 claims abstract description 8
- 229910052921 ammonium sulfate Inorganic materials 0.000 claims abstract description 8
- 239000001166 ammonium sulphate Substances 0.000 claims abstract description 8
- 235000011130 ammonium sulphate Nutrition 0.000 claims abstract description 8
- 239000004568 cement Substances 0.000 claims abstract description 6
- 229920001807 Urea-formaldehyde Polymers 0.000 claims abstract description 5
- GZCGUPFRVQAUEE-SLPGGIOYSA-N aldehydo-D-glucose Chemical group OC[C@@H](O)[C@@H](O)[C@H](O)[C@@H](O)C=O GZCGUPFRVQAUEE-SLPGGIOYSA-N 0.000 claims abstract description 5
- 150000002222 fluorine compounds Chemical class 0.000 claims abstract description 5
- 239000002253 acid Substances 0.000 claims abstract description 3
- ZOMBKNNSYQHRCA-UHFFFAOYSA-J calcium sulfate hemihydrate Chemical compound O.[Ca+2].[Ca+2].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O ZOMBKNNSYQHRCA-UHFFFAOYSA-J 0.000 claims abstract description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 8
- 239000002893 slag Substances 0.000 claims description 5
- 229910019142 PO4 Inorganic materials 0.000 claims description 4
- 229910052586 apatite Inorganic materials 0.000 claims description 4
- 239000000203 mixture Substances 0.000 claims description 4
- VSIIXMUUUJUKCM-UHFFFAOYSA-D pentacalcium;fluoride;triphosphate Chemical compound [F-].[Ca+2].[Ca+2].[Ca+2].[Ca+2].[Ca+2].[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O VSIIXMUUUJUKCM-UHFFFAOYSA-D 0.000 claims description 4
- 235000021317 phosphate Nutrition 0.000 claims description 4
- 150000003013 phosphoric acid derivatives Chemical class 0.000 claims description 3
- 150000004683 dihydrates Chemical class 0.000 claims description 2
- 238000002360 preparation method Methods 0.000 claims description 2
- 239000000470 constituent Substances 0.000 claims 1
- XLYOFNOQVPJJNP-ZSJDYOACSA-N heavy water Substances [2H]O[2H] XLYOFNOQVPJJNP-ZSJDYOACSA-N 0.000 claims 1
- 239000002002 slurry Substances 0.000 abstract description 4
- 230000006835 compression Effects 0.000 description 13
- 238000007906 compression Methods 0.000 description 13
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 description 8
- 239000004202 carbamide Substances 0.000 description 8
- 229920005989 resin Polymers 0.000 description 6
- 239000011347 resin Substances 0.000 description 6
- 238000004090 dissolution Methods 0.000 description 4
- 239000004566 building material Substances 0.000 description 3
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 229910052925 anhydrite Inorganic materials 0.000 description 2
- 239000011230 binding agent Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 229910001415 sodium ion Inorganic materials 0.000 description 2
- 239000001117 sulphuric acid Substances 0.000 description 2
- 235000011149 sulphuric acid Nutrition 0.000 description 2
- HBGPNLPABVUVKZ-POTXQNELSA-N (1r,3as,4s,5ar,5br,7r,7ar,11ar,11br,13as,13br)-4,7-dihydroxy-3a,5a,5b,8,8,11a-hexamethyl-1-prop-1-en-2-yl-2,3,4,5,6,7,7a,10,11,11b,12,13,13a,13b-tetradecahydro-1h-cyclopenta[a]chrysen-9-one Chemical compound C([C@@]12C)CC(=O)C(C)(C)[C@@H]1[C@H](O)C[C@]([C@]1(C)C[C@@H]3O)(C)[C@@H]2CC[C@H]1[C@@H]1[C@]3(C)CC[C@H]1C(=C)C HBGPNLPABVUVKZ-POTXQNELSA-N 0.000 description 1
- PFRGGOIBYLYVKM-UHFFFAOYSA-N 15alpha-hydroxylup-20(29)-en-3-one Natural products CC(=C)C1CCC2(C)CC(O)C3(C)C(CCC4C5(C)CCC(=O)C(C)(C)C5CCC34C)C12 PFRGGOIBYLYVKM-UHFFFAOYSA-N 0.000 description 1
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 1
- SOKRNBGSNZXYIO-UHFFFAOYSA-N Resinone Natural products CC(=C)C1CCC2(C)C(O)CC3(C)C(CCC4C5(C)CCC(=O)C(C)(C)C5CCC34C)C12 SOKRNBGSNZXYIO-UHFFFAOYSA-N 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- OSGAYBCDTDRGGQ-UHFFFAOYSA-L calcium sulfate Chemical compound [Ca+2].[O-]S([O-])(=O)=O OSGAYBCDTDRGGQ-UHFFFAOYSA-L 0.000 description 1
- CEJLBZWIKQJOAT-UHFFFAOYSA-N dichloroisocyanuric acid Chemical compound ClN1C(=O)NC(=O)N(Cl)C1=O CEJLBZWIKQJOAT-UHFFFAOYSA-N 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910017604 nitric acid Inorganic materials 0.000 description 1
- 239000002674 ointment Substances 0.000 description 1
- 239000011368 organic material Substances 0.000 description 1
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 1
- 239000010452 phosphate Substances 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 229910021653 sulphate ion Inorganic materials 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/14—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing calcium sulfate cements
- C04B28/141—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing calcium sulfate cements containing dihydrated gypsum before the final hardening step, e.g. forming a dihydrated gypsum product followed by a de- and rehydration step
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
- Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
- Devices For Post-Treatments, Processing, Supply, Discharge, And Other Processes (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL7410706A NL7410706A (nl) | 1974-08-09 | 1974-08-09 | Werkwijze voor het vervaardigen van vormlingen uit gips. |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1077245A true CA1077245A (en) | 1980-05-13 |
Family
ID=19821890
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA232,971A Expired CA1077245A (en) | 1974-08-09 | 1975-08-06 | Process for preparing shaped articles from gypsum |
Country Status (12)
| Country | Link |
|---|---|
| JP (1) | JPS5145120A (enExample) |
| BE (1) | BE832152A (enExample) |
| BR (1) | BR7505111A (enExample) |
| CA (1) | CA1077245A (enExample) |
| DE (1) | DE2535577A1 (enExample) |
| ES (1) | ES440142A1 (enExample) |
| FR (1) | FR2281202A1 (enExample) |
| GB (1) | GB1479804A (enExample) |
| IT (1) | IT1041174B (enExample) |
| NL (1) | NL7410706A (enExample) |
| PL (1) | PL112807B1 (enExample) |
| ZA (1) | ZA755010B (enExample) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL7604948A (nl) * | 1976-05-08 | 1977-11-10 | Stamicarbon | Werkwijze voor het vervaardigen van vormlingen uit calciumsulfaatdihydraat. |
| SU863537A1 (ru) * | 1977-04-27 | 1981-09-15 | Ростовский Филиал Производственно-Технического Объединения "Росоргтехстром" | Способ изготовлени гипсовых изделий |
| FR2398703A1 (fr) | 1977-07-26 | 1979-02-23 | Invest Develop App | Perfectionnements aux produits a base de platre et a leurs procedes de fabrication |
| FR2462402A1 (fr) * | 1979-08-03 | 1981-02-13 | Setec Geotechnique | Procede de fabrication d'elements de construction a partir de sulfate de calcium hydrate, residu de traitement de phosphate calcique |
| FI59872C (fi) * | 1979-12-21 | 1981-10-12 | Pentti Veikko Kalevi Hukkanen | Foerfarande foer framstaellning av engaongsmaol exempelvis lerduvor foer skyttesport eller liknande |
| JP2596994B2 (ja) * | 1988-12-06 | 1997-04-02 | 三菱重工業株式会社 | 石膏硬化体の製造方法 |
| EP0729926A1 (en) * | 1995-03-03 | 1996-09-04 | Gyproc Benelux | Process for producing gypsum building elements and gypsum building elements produced by said process |
| RU2379248C1 (ru) * | 2009-02-27 | 2010-01-20 | Юлия Алексеевна Щепочкина | Композиция для получения строительных изделий |
-
1974
- 1974-08-09 NL NL7410706A patent/NL7410706A/xx not_active Application Discontinuation
-
1975
- 1975-08-04 ZA ZA00755010A patent/ZA755010B/xx unknown
- 1975-08-06 BE BE158959A patent/BE832152A/xx not_active IP Right Cessation
- 1975-08-06 CA CA232,971A patent/CA1077245A/en not_active Expired
- 1975-08-07 GB GB33057/75A patent/GB1479804A/en not_active Expired
- 1975-08-07 IT IT50868/75A patent/IT1041174B/it active
- 1975-08-07 FR FR7524682A patent/FR2281202A1/fr active Granted
- 1975-08-08 BR BR7505111*A patent/BR7505111A/pt unknown
- 1975-08-08 DE DE19752535577 patent/DE2535577A1/de not_active Withdrawn
- 1975-08-08 JP JP50095954A patent/JPS5145120A/ja active Pending
- 1975-08-08 ES ES440142A patent/ES440142A1/es not_active Expired
- 1975-08-11 PL PL1975182667A patent/PL112807B1/pl unknown
Also Published As
| Publication number | Publication date |
|---|---|
| ES440142A1 (es) | 1977-03-01 |
| NL7410706A (nl) | 1976-02-11 |
| DE2535577A1 (de) | 1976-02-26 |
| JPS5145120A (enExample) | 1976-04-17 |
| IT1041174B (it) | 1980-01-10 |
| BR7505111A (pt) | 1976-08-03 |
| FR2281202A1 (fr) | 1976-03-05 |
| PL112807B1 (en) | 1980-11-29 |
| ZA755010B (en) | 1976-07-28 |
| GB1479804A (en) | 1977-07-13 |
| BE832152A (nl) | 1976-02-06 |
| FR2281202B1 (enExample) | 1982-08-20 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKEX | Expiry |